Abstract

The effect of variation of impacting masses on the maximum acceleration and maximum displacement of the masses and the maximum resisting force of a hydraulic shock absorber is analyzed using an optimization method proposed in this papar. The maximum value of the maximum accelerations of nondimensional ten masses is set as an objective function for the optimum design of a hydraulic shock absorber, and is minimized. Furthermore, the above optimization results are compared with optimization results obtained under the condition that the objective function to be minimized is the maximum acceleration of the maximum mass only. The maximum acceleration of the masses and the maximum resisting force of the shock absorber obtained by the former optimization are less than the those obtained by the latter optimization at impacts of masses in the range of 55-90% of the maximum mass.

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